Phone with high resolution versus large sensor with low resolution
Today let’s talk about the advantages and disadvantages of two cameras: one
with a sensor smaller than the other, while having more resolution than the
latter. Which would be a winner? First of all, many people would probably focus
most on pixels, which can be a major player, but perhaps not the main player,
in image quality. The more pixels there are, the larger an image can be printed.
However, do keep in mind that if the lighting changes drastically, and if you
also want to use various different settings and still get identical looking images,
you might be disappointed if the sensor is relatively small, like they usually have
been made in smartphones. However, there have been cameras with sensors
several times larger than those found in smartphones, and cost
many times that of even the best phones. The advantages that I
know of are pretty interesting. larger sensors can deliver higher dynamic range,
and less noise in lowlight. Larger sensors can also produce smaller depth of
field naturally (unlike smartphones, in which a glitch can lead to uneven or
unnatural processing in which the sharpness falloff can be unnatural). When
enhancing an image, that’s when the dynamic range of an image can really be
put to the test. The darker the shadows of an image are, the more brightening
they need if you want to show detail in those areas; when brightening shadows
in a photo done with a small sensor, the amount of noise (grain)
visible will be more than with a larger sensor. And in low light situations,
you don’t even need to go that far to show the effects of increased noise.
Instead, just amplify the signal, by raising the ISO ever more, to more easily get a perfect photo. The image quality on a smaller sensor can suffer more
than on a larger sensor; and the colors on the larger sensor can be more
accurate (note: this can be a helpful piece of advice when photographing sports
or fast action, since high ISO values can lead to quicker shutter speed).
Aperture can also be affected by a large sensor. Stopping down, or using a
smaller aperture, means that you can attain a larger depth of field (DOF).
Technically, yes, a smaller sensor already has a larger depth of field if the lens
being used is set to the same focal length and aperture on both cameras.
However, that still doesn’t change the fact that a larger sensor can allow you
to set a smaller aperture than you can with a small sensor, until reaching the
point at which diffraction (which is basically loss of image quality) sets in.
Meanwhile, the phone probably can’t do away with small depth of field in
video, at least not as easily as an SLR. AI takes up processing power, while
an SLR can do the trick without processing power. With a smaller sensor,
however, you can notice a great benefit when it comes to macro photography:
the ability to zoom in closer, more easily. And, with a smaller sensor, the lens
doesn’t need to be as heavy to achieve the same specifications. The crop factor
of a phone can be much greater than that of an SLR, meaning that you can
naturally have more magnification without having to add more
additional weight to your kit. Overall, it’s been basically a rundown, instead of a comprehensive
explanation, of benefits and disadvantages, however, I hope that you can use
this information to the fullest extent to improve your knowledge and skill.
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